Examine source code of Zoom Launcher

{
  "description": "Open Zoom meeting links in the app. That's all.",
  "manifest_version": 2,
  "name": "Zoom Launcher",
  "version": "1.0.1",
  "icons": {
    "48": "icons/icon-zoom-48.png",
    "96": "icons/icon-zoom-96.png"
  },
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "tabs",
    "https://*.zoom.us/*",
    "https://*.zoom.com/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  }
}